Singapore — there is a primary source, and it is DSRC.
This page corrects something this site previously published. It said no primary regulatory source could be located for Singapore. One exists, it has existed since 2017, and it is linked below. What it does not do is authorise C-V2X — and the distinction between “we found nothing” and “there is nothing” is exactly the distinction this catalogue is built around.
This site said no primary source could be located. It was wrong.
Until this review, the Asia-Pacific page stated that no primary regulatory sources could be located for Singapore. A primary source exists and has since 2017: IMDA TS DSRC, Issue 1 Revision 1, October 2017 — the Technical Specification for Dedicated Short-Range Communications (DSRC) in Intelligent Transport Systems, prepared through the Telecommunications Standards Advisory Committee's ITS-DSRC task force and published by the Info-communications Media Development Authority.
The correction is worth stating plainly because the error was a specific and avoidable kind: “we did not find one” had been written up as “there is not one”. Those are different claims, only one of them was supported, and the whole design of this catalogue — separate fields for what a document is, what it binds and what was actually checked — exists to stop the first from quietly becoming the second.
DSRC, over seven channels, for on-board and roadside units alike.
Its scope clause establishes it on IEEE 802.11 with modifications to the PHY and MAC layers, DSRC in the 5 GHz spectrum, and the IEEE 1609 WAVE family for security and network management. It is intended for developing ITS architecture for vehicle-to-vehicle and vehicle-to-infrastructure communications.
- Spectrum: the specification states that 5.855–5.925 GHz has been allocated for operation of DSRC in Singapore, divided into seven 10 MHz channels.
- Equipment: both on-board units and roadside units, with antenna-height conditions applying to roadside units above 8 m and up to 15 m.
- Restriction: the highest power class of DSRC device, and roadside units in that class, are restricted to public safety uses.
Binding effect: not established. The specification's preface is a placeholder and the document states no registration or type-approval obligation of its own, so whether compliance conditions equipment registration in Singapore is recorded in the catalogue as unknown rather than assumed either way.
Access: IMDA publishes it for free download and states that it may not be distributed without written permission. It is therefore linked here and not mirrored, like every other copyrighted document in this catalogue.
This is a DSRC document. It authorises no C-V2X.
The words C-V2X, LTE-V2X and PC5 do not appear anywhere in the specification. It is built on IEEE 802.11 and IEEE 1609 throughout. Nothing in it authorises PC5 operation in Singapore, and nothing in it forbids one either — it simply does not address the question.
So the honest Singapore position is this: there is a published DSRC technical specification naming 5855–5925 MHz, and there is no C-V2X instrument in this catalogue. The second half of that sentence is a statement about our research, not about Singapore. What separates the two technologies →
The documents, one record each.
Each identifier links to its canonical record in the V2X standards library, where the edition, dates, band, access conditions and verification note are held once. Status and binding effect are separate: a published document is not automatically a legal requirement.
| Document | Title | Type | Status | Binding effect |
|---|---|---|---|---|
| IMDA TS DSRC | Technical Specification for Dedicated Short-Range Communications (DSRC) in Intelligent Transport Systems (ITS) | Radio and access | Published final | Binding effect unknown |
Where this fits.
Asia-Pacific
Japan, South Korea and Australia — the regional context this correction sits in.
DSRC vs C-V2X
Why a DSRC specification tells you nothing about a market's C-V2X position.
Standards library
Every document in this catalogue, with what was verified recorded on each record.
Last reviewed: 29 September 2026. IMDA TS DSRC Issue 1 Revision 1 was read in full at source on that date.
Questions this page answers.
Is there a Singapore V2X standard?
There is a published IMDA technical specification for DSRC in intelligent transport systems: IMDA TS DSRC, Issue 1 Revision 1, October 2017, prepared through the Telecommunications Standards Advisory Committee. This site previously stated that no primary source could be located for Singapore. That statement was wrong and has been corrected.
Which band does IMDA TS DSRC cover?
It states that the 5.9 GHz frequency spectrum from 5.855 GHz to 5.925 GHz has been allocated for operation of DSRC in Singapore, divided into seven 10 MHz channels. It covers both on-board units and roadside units, with antenna-height conditions on roadside units and a public-safety-only restriction on the highest power class.
Does Singapore permit C-V2X?
Nothing in IMDA TS DSRC addresses it. The words C-V2X, LTE-V2X and PC5 do not appear anywhere in the document, which is built on IEEE 802.11 and the IEEE 1609 WAVE family. No Singaporean position on C-V2X should be inferred from this specification in either direction, and none is asserted here.
Is compliance with IMDA TS DSRC mandatory?
Not established. The specification's preface is a placeholder and the document itself states no registration or type-approval obligation, so whether compliance is a condition of equipment registration in Singapore is recorded in the catalogue as unknown rather than guessed at.
Last updated 2026-09-29 · Technical reference maintained by Ambimat Electronics, Ahmedabad, India. Corrections: neel.shah@ambimat.com